The internet relies on a system of addresses that treats every computer, tablet and smartphone as a distinct device, allowing all of them to communicate with each other. Because many kinds of devices ...

USB ports don’t all offer the same speed. Using a slower port can cause delays in file transfers, slower charging, and poor performance for high-speed devices. So, how can you identify the fastest one ...

Port Query (PortQry.exe) is a command-line utility in the Windows operating system that you can use to help troubleshoot TCP/IP connectivity issues. The tool reports the port status of TCP and UDP ...

Firewalls are devices that help keep your computer safe from threats on networks. Windows includes a program called Microsoft Firewall to maintain system security. There may be occasions when you need ...

My MacBook Air has two USB-C ports on it, plus a headphone jack. One of the ports has the power plug in it, the other has my mouse bluetooth connector. When I want to backup files to a thumb drive, I ...